Page 6
A
-
Heating Flow
(22mm)
B
-
D.H.W. Outlet
(15mm)
C
-
Gas Inlet
(22mm)
D
-
Cold Water Inlet (15mm)
E
-
Heating Return (22mm)
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
At
th
e
re
ar
At
the rear
At
the rear
14 -
Air Pressure Switch
15 -
Condensing Unit (Turbo heat exchanger)
16 -
Overheat Safety Thermostat
17 -
Ignition Electrode
18 -
Heating Circuit– Pressure Safety Valve
19 -
Secondary Heat Exchanger (Plate H.E.)
20 -
Automatic Air Vent
21 -
Water Pressure Switch/Sensor
22 -
Pump
23 -
Gas Valve
24 -
D.H.W. Flow Sensor
25 -
Filter Valve (Below the pump)
Key
1 - D.H.W. Sensor
2 - Diverter Valve Motor (Three Way Valve Motor)
3 - Diverter Valve (Three Way Valve)
4 - Condensate Trap
5 - Limit Safety Thermostat
6 - Expansion Vessel (At rear of the boiler)
7 - Burner
8 - Flame Sensor (Ionisation) Electrode
9 - C.H. Sensor (Heating Sensor)
10 -
Combustion Chamber
11 -
Primary Heat Exchanger
12 -
Fan Hood
13 -
Fan
Figure 1
06